- Real time continuous measurement and monitoring of up to 6 gaseous and particulate pollutants simultaneously, among: H2S/CH4S, NH3, nmVOC, O3/NO2, NO2, CO, SO2, PM, plus environmental parameters: temperature, relative humidity and pressure.
- Plug & Play Network: no manual intervention, automatic detection, linking and configuration of the network (Cairsens® / Cairnet® / Caircloud®)
- Very high sensitivity to capture low level gas concentrations (down to ppb)
- Modular, easy to use, easy to move: no cables or complicated installation, just set up and move to different locations on your site as needed
- Cairnet® requires only annual maintenance, when sensors should be renewed with new ones
- Ability to change the set of pollutants being monitored at any time
- Advanced remote diagnosis with real tracking state of life
- Possibility to realize hybrid AQMS networks (reference stations & mini-stations)
- Operating cost savings: process adjustment & Improvement of local communication (neighbors & authorities)
- Cost-effective solution for air quality monitoring
Independent reviewers, including the European JRC (Joint Research Council) and the US-EPA, have determined the accuracy, linearity, limits of detection and precision of Cairsens® as very good when compared with reference devices. Further studies with NASA have shown very good agreement with reference measurements.
Every Cairnet measurement point consists of:
- Solar panel and its battery
- Wireless communication module
- Weather protection enclosure including up to 6 Cairsens miniature sensors, each measuring one or two pollutants. The sensors are to be selected from the list, function of your specific requirements.
| Measurable parameters |
| Pollutant |
Range
(ppb) |
Certified detection
limit (ppb)* |
Resolution
(ppb) |
Order
code |
H2
S / CH4S |
0-1,000
0-20,000
0-200,000 |
10
30
200 |
1 |
A40-0401
A40-0402
A40-0403 |
| NH3 |
0-25,000 |
500 |
1 |
A40-0408 |
| nmVOC |
0-16,000
0-2,000 |
500
200 |
1 |
A40-0409
A40-0410 |
| O3 / NO2 |
0-250 |
20 |
1 |
A40-0406 |
| NO2 |
0-250 |
20 |
1 |
A40-0405 |
| CO |
0-20,000 |
50 |
1 |
A40-0404 |
| SO2 |
0-1,000 |
50 |
1 |
A40-0407 |
| PM10/PM2.5/PM1 |
0-1,000 µg/m3 |
<5 µg/m3 |
0.01 µg/m3 |
A40-0414 |
*They are delivered with a calibration certificate.
| Technical specifications |
| Power supply |
8 to 30 VDC / 2.5 A or battery + SP |
| Battery included |
3.7V-22Ah, Li-Ion |
| Solar Panels Kit (option) |
27 Watts (with 2 panels). Mounting bracket included |
| Control & Data Treatment Board |
Internal microprocessor for data acquisition, power and communication managment etc…
Embedded Real-Time-Clock (auto-adjusted at every communication) |
| I/O Login & local communications |
RS485/RS232 for RTU Modbus, RJ45 for TCP-IP Modbus
SDI12 for acquisition of weather parameters (Availablility: Spring 2021) |
| Wireless communication |
Cellular 3G-, 4G LTE (SIM not included) |
| Locally data storage |
Internal Cairsens memory. Data buffering for back up if communication is lost |
| Mounting included |
Included for pole, tripod, mast, wall, etc. (⌀50 mm max) |
| Dimensions of the Cairnet® housing with mounting kit & antenna |
300 x 215 x 257 mm (L x H x W) |
| Dimensions of the solar Panels with its mounting kit |
800 x 410 x 100 mm (L x H x W) |
| Weight of the Cairnet® housing |
4 Kg |
| Weight of the Solar Panels kit |
4.9 Kg |
| Environmental using conditions |
-20°C to +50°C / HR 10% to 90% |
Cellular communication characteristics:
- Technology and frequency bands: LTE (1800, 2100, 2600 MHz), WCDMA (800,1700, 2100 MHz), GPRS/Edge (850 MHz, 900 MHz, 1800 MHz, 1900 MHz)
- Download up to 100 Mbps, Upload up to 50 Mbps
- Regulatory compliance: R&TTE directive 1999/5/EC Japan JRF/JPA – FCC – IC
Site configuration and communication mode:
- Wireless / Cellular: suitable for large surface network deployments, industrials & urban sites covered by the network.
- Serial / Modbus: suitable for local spot monitoring for applications such as health and safety, process leakage detection or area not covered by telephone network
